The table at the right shows the amount of carbon dioxide in the atmosphere for selected years. Make a scatter plot of the data letting x be the number of years after 1900. Determine the kind of polynomial model that seems to be most appropriate. Predict the amount of carbon dioxide in the atmosphere in 2023.

How many grams the dog will eat in 3 days?

How do you determine if an ordered pair is a solution to a given equation?

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min